Which exchanges have the best affiliate and customer referral programs? The exchange should have good reputation and liquidity.
I'm not sure about some other exchanges, but Binance is have good reputation and liquidity, and their referral program offer 20% commission. This percentage may increase to 40% if you buy at least
500 BNB coins and keep them in your account.
Currently the price of 1 BNB is around 6$ so this is not a small investment (3000$+), but if you can get good amount of active traders with your referral link, it can be a very profitable investment.
More info :
Binance Referral Program